Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Fast, Reliable Air Duct Cleaning Across Old Greenwich
Air duct cleaning in Old Greenwich typically runs $425 – $725 for a standard single-system home, and most jobs take four to six hours from setup to final photo documentation. That’s a real range, not a teaser, and it’s the number we write on your quote before a single register is touched. If you live near Greenwich Cove, Binney Park, or up toward Sound Beach Avenue, call (737) 727-2314 and we’ll walk through what your house actually needs. Our crews know Old Greenwich’s housing stock, which means we arrive prepared for older duct chases, original registers, and plaster walls that change how a cleaning should be done.
We’re the Air Duct Cleaning specialists in the Relay Home Co. family, and every Old Greenwich job runs on The Relay Standard: a live trackable arrival window, before-and-after photos of your own ducts, and a written price you approve before we start.
Why Cardinal Air Duct Cleaning Is Old Greenwich’s Preferred Air Duct Cleaning Company
Old Greenwich homeowners tend to ask the same three questions: what’s the real price, who’s actually coming to the house, and how will I know the work was done. We answer all three before you commit. Your technician’s name and background-check record are shared when you book through the Relay Standard. The equipment on the truck is professional-grade: Rotobrush rotary brush systems for agitation, Nikro HEPA vacuums for negative-pressure extraction, and Abatement Technologies containment units where an older home needs it. No shop vacs, no mystery crews, no price that moves when the tech walks in.
Omar Haddad leads our Old Greenwich operations, and his team works on a simple rule: if it’s not done right, we return and correct it at no charge for a full 365 days. That’s the 365-Day Done Right Promise, and it applies to every booking without exception. Calls are answered by a live person around the clock, and scheduling is coordinated from our Hartford office while crews serve Old Greenwich locally. This isn’t a franchise call center handing your name to a stranger.
Air Duct Repair in Old Greenwich
Air Duct Repair in Old Greenwich most often means sealing a separated return drop, replacing a crushed flex run, or repairing a leaking plenum connection behind a finished wall. In the neighborhoods around Binney Park and Shore Road, we see a lot of original sheet metal ductwork from the 1930s through 1950s, and after decades of seasonal expansion and contraction, joints loosen and small gaps open. That pulls attic air, crawlspace dust, and humidity into the airflow path. Repair usually runs $250 – $600 per section in this market, depending on access and whether we’re sealing a visible joint or opening a small access panel to reach a hidden connection.
Every repair carries a written guarantee, and if the repair fails within the year, the second visit is free. That’s not a promotion. It’s the standing rule.
Return Drop Resealing
In older Old Greenwich homes, the return drop is often a galvanized chute behind plaster, and when it separates at the air handler, the system pulls unfiltered air from wherever that gap sits. We locate the separation with a camera inspection, then reseal with mastic and reinforced tape rated for HVAC static pressure. You get photos of the sealed joint before and after.
Flex Duct Replacement in Attics and Crawls
Where an Old Greenwich addition or renovation used flexible ducting, we regularly find kinked, collapsed, or torn runs that starve one room of airflow while wasting conditioned air into the attic. Replacement includes proper suspension, sealed connections, and R-8 insulation matching the original system. We quote one flat price per run before any cutting starts.
Ductwork Cleaning in Old Greenwich
Ductwork Cleaning in Old Greenwich means full source removal from both the supply and return sides of the system, including the air handler cabinet, blower compartment, and evaporator coil where accessible. For a typical 1930s to 1960s colonial or cape near Sound Beach Avenue or Shoreline Drive, a complete cleaning runs $475 – $725. Homes with multiple systems, long duct runs, or heavily soiled returns fall at the higher end, and we’ll tell you exactly why before you approve anything.
The process is negative-pressure extraction, which is a plain way of saying the loosened debris goes straight into the HEPA-filtered vacuum, not back into your living room. We agitate each trunk line and branch with a Rotobrush system while the Nikro vacuum maintains constant negative pressure on the system. Then we photograph the inside of representative duct sections so you can see the metal surface before and after.
Full System Cleaning
Full System Cleaning includes the blower motor housing, evaporator coil fins, supply plenum, return drop, and every accessible register boot. In older Old Greenwich homes with original registers, we clean each boot by hand rather than blasting through, because the galvanized seams on those old fixtures can separate under aggressive pressure.
Video Inspection Before and After
We run a camera through the main trunk lines before we start and again after we finish. You see the footage. That’s how you know the work was actually done, and it’s non-negotiable on every Old Greenwich job we perform.
Trusted Brands We Service in Old Greenwich
We clean and service systems from every major residential brand found in Fairfield County homes: Carrier, Trane, Lennox, Rheem, Goodman, Bryant, York, and Amana among them. Because Old Greenwich housing stock spans nearly a century of equipment, we carry common components locally rather than ordering from a distant warehouse. We also stock and install filtration products from Honeywell, Aprilaire, and Guardsman when a homeowner wants better media filtration after a deep cleaning. If your system is a mid-century original or a high-efficiency unit installed last year, the process adapts but the flat-price-per-system model never changes.
Common Air Duct Cleaning Problems We See in Old Greenwich Homes
- Horsehair plaster dust in pre-1940 duct chases. Many waterfront homes near Greenwich Cove and Binney Park were built before drywall existed. Original plaster walls shed fine dust and fibers that collect around register boots and mechanical fasteners. A standard cleaning misses these; our crews remove the boot, clean the immediate chase, and reinstall with a new gasket.
- Return drop lint buildup in coastal colonials. We regularly find a thick lint pathway coating the return drop behind original plaster walls. This comes from years of unfiltered bedroom air pulling directly through the return. Source removal inside the air handler cabinet is essential, not optional.
- High pollen loading in spring. Old Greenwich’s mature tree canopy along Shore Road and through Binney Park produces heavy spring pollen. When homes run their systems with old or undersized filters, that pollen loads into the supply ducts and recirculates for weeks after the trees stop blooming.
- Disconnected flex runs from past renovations. Additions and kitchen remodels often leave flex duct poorly connected or completely separated above the ceiling. We find these with the video inspection and quote repairs as their own line item, not as a surprise add-on.
Pricing for Air Duct Cleaning in Old Greenwich, CT
A standard single-system Air Duct Cleaning in Old Greenwich runs $425 – $725, flat per system, agreed before we start. Two-system homes or those with long commercial-style trunk runs fall between $850 and $1,300. Dryer vent cleaning added to a duct cleaning job runs $89 – $149. We don’t price per vent, and we don’t advertise a low number that balloons once the truck is in your driveway. The quote you approve is the price you pay, and it includes all labor, equipment, containment where needed, and before-and-after photo documentation.
Call (737) 727-2314 for a free estimate. We’ll ask about square footage, system count, and access points, then give you a written range before scheduling anything.
We Also Serve Cities Near Old Greenwich
Cardinal Air Duct Cleaning serves Old Greenwich and the surrounding coastal corridor, including Old Greenwich, Riverside, Cos Cob, Stamford, and Greenwich. If you’re just over the town line, the same flat-per-system pricing and 365-Day Done Right Promise applies, and scheduling works through the same phone number.
Serving Old Greenwich, CT - Our Local Coverage Area
We’re based in the Old Greenwich area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning in Old Greenwich
Every four to six years for most Old Greenwich homes, regardless of what a flyer or a telemarketer says. Homes within a few blocks of Greenwich Cove or with large mature trees on the property skew toward every three to four years due to humidity and pollen loading. If you just moved into a pre-1980 home and have no records of the last cleaning, get a video inspection first. If the ducts are clean, we’ll tell you not to pay for a cleaning. Call (737) 727-2314 and we’ll help you decide honestly.
One flat price per system includes cleaning the supply trunk, all supply branches, the return drop, the air handler cabinet, blower motor housing, evaporator coil where accessible, and every register boot. It also includes your before-and-after video inspection and photo documentation. No per-vent pricing, no add-on charges for “deep cleaning” we already performed. The price does not change at the door.
Yes, our process follows NADCA source-removal methodology, adapted for the older housing stock you find in Old Greenwich. That means negative-pressure containment, proper agitation of every trunk line and branch, and HEPA filtration rather than blow-and-go methods. In pre-1940 homes with original plaster chases, we take additional steps to protect the plaster and clean around mechanical fasteners that a generic process would simply blast past.
Yes, and in an Old Greenwich home it’s usually worth doing at the same time. Some of the narrow laundry chases on older colonials near Binney Park create long dryer vent runs with multiple bends where lint collects fast. Adding Dryer Vent Cleaning - Old Greenwich to a duct cleaning visit runs $89 – $149, and you’ll get before-and-after photos of the vent interior too. One visit, one technician, one flat quoted price for both services.
Homes near Greenwich Cove sit in a humid marine air zone for much of the year, and that elevated humidity means dust, pollen, and biological particles bind to duct surfaces rather than drying out and blowing through. Add original horsehair plaster, older carpets, and a mature tree canopy, and the indoor particulate load runs higher than in a newer inland home. Clean ducts and a better media filter change what your family is breathing every day. Call (737) 727-2314 if you want us to inspect your system and tell you honestly whether cleaning will help.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Old Greenwich and the surrounding coastal communities.




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